Finding the Fourth Proportional to 315,235.80, 472,853.70 and 93,619.80
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Solution
The fourth proportional to 315,235.80, 472,853.70 and 93,619.80 is: 140,429.70
Step by Step Solution
- Step 1: Write the proportion equation
315,235.80 : 472,853.70 = 93,619.80 : x - Step 2: Convert to fraction form
315,235.80/472,853.70 = 93,619.80/x - Step 3: Cross multiply
315,235.80x = 472,853.70 × 93,619.80 - Step 4: Simplify right side
315,235.80x = 44,268,468,823.26 - Step 5: Solve for x
x = 44,268,468,823.26/315,235.80 - Step 6: Final answer
x = 140,429.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.